FlexibleVarContext - a VarContext where you can add variables by name at runtime [1035281]

< > BotCompany Repo | #1035281 // FlexibleVarContext - a VarContext where you can add variables by name at runtime

JavaX fragment (include) [tags: use-pretranspiled]

// A FlexibleVarContext is thread-safe AFTER the first variable has been defined
// or after you call makeThreadSafe(), whichever comes first
sclass FlexibleVarContext > VarContext {
  MapSO vars;
  
  *() {}
  *(VarContext parent) { super(parent); }
  
  O get(S name) {
    if (containsKey(vars, name))
      ret mapGet(vars, name);
    if (parent != null)
      ret parent.get(name);
    null;
  }
  
  void set(S name, O value) {
    vars = putOrCreateSyncMap(vars, name, value);
  }
  
  AutoCloseable tempSet(S name, O value) {
    initMap();
    ret main tempPut(vars, name, value);
  }
  
  void unset(S name) {
    remove(vars, name);
  }
  
  MapSO varMap() { ret vars; }

  void makeThreadSafe aka initMap() {
    vars if null = syncHashMap();
  }
}

Author comment

Began life as a copy of #1033977

Travelled to 4 computer(s): bhatertpkbcr, ekrmjmnbrukm, mowyntqkapby, mqqgnosmbjvj

Snippet ID:

#1035281

Snippet name:

FlexibleVarContext - a VarContext where you can add variables by name at runtime

Eternal ID of this version:

#1035281/3

Text MD5:

fc467ef3e3654489e105a91c02bc3fc0

Transpilation MD5:

ed99992e986c18b278bf2233566a5abf

Author:

stefan

Category:

javax / parsing

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2023-09-19 20:07:56

Source code size:

794 bytes / 35 lines

Pitched / IR pitched:

No / No

Views / Downloads:

872 / 1090

Version history:

2 change(s)

Referenced in:

[show references]

1	// A FlexibleVarContext is thread-safe AFTER the first variable has been defined
2	// or after you call makeThreadSafe(), whichever comes first
3	sclass FlexibleVarContext > VarContext {
4	MapSO vars;
5
6	*() {}
7	*(VarContext parent) { super(parent); }
8
9	O get(S name) {
10	if (containsKey(vars, name))
11	ret mapGet(vars, name);
12	if (parent != null)
13	ret parent.get(name);
14	null;
15	}
16
17	void set(S name, O value) {
18	vars = putOrCreateSyncMap(vars, name, value);
19	}
20
21	AutoCloseable tempSet(S name, O value) {
22	initMap();
23	ret main tempPut(vars, name, value);
24	}
25
26	void unset(S name) {
27	remove(vars, name);
28	}
29
30	MapSO varMap() { ret vars; }
31
32	void makeThreadSafe aka initMap() {
33	vars if null = syncHashMap();
34	}
35	}